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RE: st: lags with multiply imputed panel data


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: lags with multiply imputed panel data
Date   Mon, 1 Mar 2010 14:57:06 -0000

If L. "does not work", whatever that means precisely, then what this
yields is a beast of unpredictable shape. 

Better to set the time variable to something appropriate, and let any
missings in those terms be explicit. 

Nick 
n.j.cox@durham.ac.uk 

Johan Hellstrom

If the L. prefix does not work, you can see if creating your lagged
treatment variable manually will help:

bysort idnum (wave): gen lag_ratecata1=ratecata1[_n-1]


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